Starting in 1976 a new and powerful radio signal was detected worldwide. It was later determined that the origin of the interference was somewhere in the USSR. The Duga-3 facility was erected between 1970 and 1975 and used as an enormous antenna. It is a huge lattice mega-structure, 150 meters wide, 90 high, and 750 long. To man the radar system, a small secret city was built, in which 1000 people lived. Duga-3 is a Soviet early missile detection system (over-the-horizon radar system). This site was NATO codenamed, "Steelyard”. It was nicknamed “Russian Woodpecker” due to the signal that could be heard on the shortwave radio bands worldwide between July 1976 and December 1989. It sounded like a sharp, repetitive tapping noise, at 10 Hz, giving rise to the "Woodpecker" name. The random frequency disrupted legitimate broadcast, amateur radio, and utility transmissions and resulted in thousands of complaints by many countries worldwide. You must enter the facility without setting off any alarms. You must destroy the Soviet radio equipment in the main communications building. After the radios have been destroyed Soviet patrols will not be able to radio in your presence. Proceed to the Duga-3 array and place C-4 charges and once you’re clear detonate the C-4.